Quantum Steering Could Make Cooling More Efficient, Theory Study Finds

At a glance

Theorists have proposed a cooling method that uses the special connection between quantum states to remove heat more efficiently. The method reportedly performed better than one using only classical resources. The results are still at the theoretical stage.

Key points

1. 1

   The research team designed a hypothetical cooling process that removes heat by using a set of quantum states, one at a time.

2. 2

   For this to work, the states must show 'quantum steering' between two distant locations, meaning that a measurement on one side changes the state on the other side.

3. 3

   The researchers proved that sets showing steering have a clear cooling advantage over those that do not.

4. 4

   The team said they hope the results will be used in quantum computing experiments, such as those using ion traps or superconducting qubits.

Why it matters

Quantum computers produce a lot of heat and must be kept at very low temperatures, so cooling efficiency is a major obstacle to practical use.